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ff_remove() [FreeRTOS+FAT Standard API Reference]

int ff_remove( const char *pcPath );
  Remove (delete, or unlink) a file from the embedded FAT file system. A file cannot be removed if it is open. Parameters:
pcDirectory A pointer to a standard null terminated C string that holds the name of the file being removed. The file name can include a relative path to the directory. 
Returns: If the file was removed successfully then zero is returned. If the file could not be removed then NULL is returned and the task's errno is set to indicate the reason. A task can obtain its errno value using the stdioGET_ERRNO() API function. A file cannot be removed if it is open. Example usage:

void vExampleFunction( void )
/* Delete a file. */
ff_remove( "/ram1/filename.txt" );

Example use of the ff_remove() API function to delete a file
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